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Study of β Type Color Reaction Between BPA-P SN and Y Group Rare Earth

Shen Xiaofeng (Applied Chemistry Research Institute of Anhui University) Liu Chunyun (Teaching Administration Department of Anhui University)  
Heavy rare earch can form β type complexes with BPA-P SN between pH 1.0 and pH3.5. This report mainly discussed the effect of quantity of the color agent, acidity and other ions to the states of rare earth complexes. Dynamic research expressed that the β type color reaction is first grade reaction.
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